CN103607983B - Hydrocellular absorbent dressing and the purposes in processing chronic wounds and acute wounds thereof - Google Patents

Hydrocellular absorbent dressing and the purposes in processing chronic wounds and acute wounds thereof Download PDF

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Publication number
CN103607983B
CN103607983B CN201280029311.XA CN201280029311A CN103607983B CN 103607983 B CN103607983 B CN 103607983B CN 201280029311 A CN201280029311 A CN 201280029311A CN 103607983 B CN103607983 B CN 103607983B
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China
Prior art keywords
absorbent
foam
backing
dressing
stiffener
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Active
Application number
CN201280029311.XA
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Chinese (zh)
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CN103607983A (en
Inventor
斯特凡娜·奥古斯特
让·马克·佩尔诺
安妮-索菲亚·达内尔
奥里利尔·沙雷
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Industrial Research And Development Simplified Jsc
VIVA TECHNOLOGY Ltd
HCP Healthcare Asia Pte Ltd
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Industrial Research And Development Is Simplified Joint-Stock Co
Laboratoires Urgo SAS
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Publication of CN103607983A publication Critical patent/CN103607983A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0203Adhesive bandages or dressings with fluid retention members
    • A61F13/0206Adhesive bandages or dressings with fluid retention members with absorbent fibrous layers, e.g. woven or non-woven absorbent pads or island dressings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0203Adhesive bandages or dressings with fluid retention members
    • A61F13/0213Adhesive bandages or dressings with fluid retention members the fluid retention member being a layer of hydrocolloid, gel forming material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0203Adhesive bandages or dressings with fluid retention members
    • A61F13/022Adhesive bandages or dressings with fluid retention members having more than one layer with different fluid retention characteristics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/023Adhesive bandages or dressings wound covering film layers without a fluid retention layer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0246Adhesive bandages or dressings characterised by the skin-adhering layer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0276Apparatus or processes for manufacturing adhesive dressings or bandages
    • A61F13/0279Apparatus or processes for manufacturing adhesive dressings or bandages by attaching individual patches on moving webs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive bandages or dressings
    • A61F13/0276Apparatus or processes for manufacturing adhesive dressings or bandages
    • A61F13/0283Apparatus or processes for manufacturing adhesive dressings or bandages for making adhesive or cohesive tape or fabrics therefor, e.g. coating or mechanical treatments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/58Adhesives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/60Liquid-swellable gel-forming materials, e.g. super-absorbents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00089Wound bandages
    • A61F2013/00217Wound bandages not adhering to the wound
    • A61F2013/00221Wound bandages not adhering to the wound biodegradable, non-irritating
    • A61F2013/00225Wound bandages not adhering to the wound biodegradable, non-irritating with non-degradable reinforcing layer, net or mesh
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00089Wound bandages
    • A61F2013/00217Wound bandages not adhering to the wound
    • A61F2013/00229Wound bandages not adhering to the wound with alginate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00544Plasters form or structure
    • A61F2013/00604Multilayer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00655Plasters adhesive
    • A61F2013/00697Plasters adhesive elastomer-, e.g. rubber- based
    • A61F2013/00702Plasters adhesive elastomer-, e.g. rubber- based silicon-based
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00655Plasters adhesive
    • A61F2013/00719Plasters adhesive adhesives for use on wounds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00655Plasters adhesive
    • A61F2013/00723Plasters adhesive non-adhesive skin fixation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00727Plasters means for wound humidity control
    • A61F2013/00761Plasters means for wound humidity control with permeable adhesive layers
    • A61F2013/0077Plasters means for wound humidity control with permeable adhesive layers arranged in lines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00727Plasters means for wound humidity control
    • A61F2013/00761Plasters means for wound humidity control with permeable adhesive layers
    • A61F2013/00774Plasters means for wound humidity control with permeable adhesive layers arranged in discrete dots
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00727Plasters means for wound humidity control
    • A61F2013/00761Plasters means for wound humidity control with permeable adhesive layers
    • A61F2013/00778Plasters means for wound humidity control with permeable adhesive layers porous layers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00727Plasters means for wound humidity control
    • A61F2013/00761Plasters means for wound humidity control with permeable adhesive layers
    • A61F2013/00782Plasters means for wound humidity control with permeable adhesive layers with macroscopic openings

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Dermatology (AREA)
  • Hematology (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Materials For Medical Uses (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

The present invention relates to absorbent dressing, this absorbent dressing comprises ventilative and impervious backing (4) and absorbent foam (2), is particularly well-suited to nurse chronic or acute wounds.The present invention relates to comprise absorbent foam (2) and the dressing of protectiveness backing (4); this protectiveness backing will not pass through liquid but can pass through water vapour; described backing is formed by film (4a) and latticed stiffener (4b) being assembled, and this latticed stiffener is coated with in the way of not blocking the hole in stiffener adhesiveness silicone gel.Additionally, this dressing comprises the non-absorbent web (5) being placed between absorbent foam (2) and backing (4), this non-absorbent web is attached to the adhesiveness silicone gel that is coated on stiffener and is fixed to absorbent foam (2).

Description

Hydrocellular absorbent dressing and the purposes in processing chronic wounds and acute wounds thereof
Technical field
The present invention relates to comprise applying of ventilative and impervious protectiveness backing and absorbent foam Expect and (such as, burn in nursing chronic wounds (such as, ulcer or eschar) or acute wounds Wound) in purposes.
Background technology
For processing the hydrocellular absorbent dressing of wound generally by absorbent foam and can be saturating The combination of gas and impervious protectiveness backing is constituted.These dressing can contain adhesiveness border, from And dressing can be fixed to the healthy skin of wound circumference.Direct for avoiding between foam and wound Contact, these dressing also can comprise the interface layer being positioned on absorbent foam.
Such as,Contact Adhesive absorbent dressing comprises the elasticity of highly-breathable Polyurethane non-woven fabrics protectiveness backing, the absorbability polyurethane foam being placed in backing central authorities and covering The discontinuous interface layer of described foam.This interface is by its micro-adhesiveness thus contributes to dressing Noinvasive use and remove.Contact Adhesive product comprises and bonds with acrylic acid The sideband (side strip) of agent coating.But, for perilesional skin, it is applied to apply The acryloid cement on material border has and not satisfied toleration, particularly at chronic wounds In the case of, perilesional skin is the most fragile.
In the nursing that chronic wounds and acute wounds are carried out, sideband is preferably used and is coated with silicone The dressing of binding agent, this silicone adhesive agent is more friendly for perilesional skin.But, silicon Ketone binding agent is completely enclosed, accordingly, it would be desirable to use silicone adhesive agent discontinuously, to guarantee The fine air permeability of dressing.But, especially in moistening environment, not connecting of silicone adhesive agent Continuous use that to cause it to adhere to constitute other material of dressing, the particularly ability of absorbent material big Big reduction.
Therefore, the absorbent dressing of production and application silicone adhesive agent must is fulfilled for the specification of complexity and adjusts With conflicting feature.The prerequisite main standard of dressing is essentially: good saturating having While gas, it is to avoid seepage and the risk of dipping, it is impossible to through liquid and antibacterial, have ventilative Property (that is, can pass through water vapour), retain cohesiveness when removed, and easily manufacture.
Dressing must also be prone to use, and the longest in the case of not damaging perilesional skin It is retained in temporally in situ, there is high absorbability, and when removed without compromising on wound Healing.Dressing must also be modelled as the form of patient, and compatible with the support system of supplementary use. Dressing must also be the most pliable and the toughest, and will not be hardening during absorbing Wound exudate.
If all these character of acquisition simultaneously, the selection that the material constituting dressing is carried out, material phase Arrangement and the assembling mode of dressing between Hu are extremely complex.
Up to now, the ventilative of cohesiveness and impervious silicone adhesive agent are comprised for obtaining Dressing, the unique scheme proposed is: only in the one side of tool hole (perforated) polyurethane film Crosslinking adhesiveness silicone gel, the perforation simultaneously keeping film is open.With acryloid cement or pass through Heat-sealing, the backing being coated with silicone adhesive agent is fixed on the backing of dressing.
?In Border product, the tool hole being such as coated with adhesiveness silicone gel is gathered Urethane film is used as interface layer.The discontinuity layer of adhesiveness silicone gel thus covers and is previously placed in the back of the body Lining form central authorities absorbent foam and be intended to adhere to the backing sideband of skin.Similarly, in application In WO2010/147533, the discontinuity layer of silicone adhesive agent covers absorbability polyurethane foam and the back of the body Lining.This discontinuity layer by only in one side the tool hole polyurethane film of silicone-coating gel form.One Denier crosslinks, and this discontinuous construction makes it possible to avoid that silicone gel is fixed to dressing and absorbs Layer.It is true that silicone gel once crosslinks, cannot be fixed to commonly use in the way of lasting In the absorbent foam manufacturing dressing.
But, in this dressing structure, silicone gel directly contacts wound.Silicone adhesive agent covers Covered the whole surface of dressing the fact that, silicone adhesive agent can not be made to be particularly suitable for covering The interface layer on absorbent foam surface;Therefore, document US2010/0292626 only proposes It is coated with silicone adhesive agent and absorbent foam directly contacts the dressing of wound at sideband.For producing This structure, the polyurethane film being coated with silicone gel cuts into the shape of sideband, uses Acrylates/ester adhesive is bound to backing film with adhesion.In this dressing, by polyurethane film Cover with continuous print silicone gel, coat acrylates/ester adhesive discontinuously simultaneously.But, Owing to cutting and concentrating the step of each composition, the production of this dressing is the most complicated.
Accordingly, it would be desirable to manufacture is not through liquid but has high osmosis to water vapour and use silicon The dressing of ketone binding agent, described dressing is easier to preparation compared with this kind of dressing of the prior art, and And cohesiveness is retained from wound when removing.
Summary of the invention
Applicants have found that be fixed to absorbent foam to be coated with on the backing of silicone gel new Method, this method makes when dressing is dried and when dressing has loaded Wound exudate, group Each material of dress has the cohesive strength of enough levels.This dressing also ratio uses silicone to glue in prior art The dressing of mixture is easier to preparation.By means of this dressing, need not cover with adhesiveness silicone gel The whole surface of dressing, thus simplify the technique manufacturing dressing, thus can be optionally by wound more Other friendly interface layer is applied to foam.
Therefore, subject of the present invention is to comprise absorbent foam and the dressing of protectiveness backing, this guarantor Protecting property backing is not through liquid but can pass through water vapour:
-described backing is by by continuous film and latticed stiffener (openwork reinforcement) Assemble and formed, not block hole in described stiffener at least one face of described stiffener Mode is coated with adhesiveness silicone gel, the whole surface of described stiffener coverlay;
-described dressing also comprises the nonabsorbable being inserted between described absorbent foam and described backing Net, this non-absorbent web adheres to the adhesiveness silicone gel being coated on described stiffener, and solid Fixed extremely described absorbent foam, the most only periphery along described absorbent foam is fixed.
Owing to (being coated with the most discontinuously with silicone gel coating on the whole surface of one face Cover) backing do not adhere to absorbent foam, so non-absorbent web be the present invention necessarily Element.In the case of using acrylates/ester adhesive, can not be assembled to be coated with silicone by foam The backing of gel.
Such as, with schematic angle, this type of dressing is described in accompanying drawing 1 to accompanying drawing 3. In these figures, dressing is illustrated in cross-section.
Accompanying drawing explanation
In FIG, absorbent foam 2 is protected by stripping type being coated with on the side of wound The discontinuous interface layer 1 of thing (peel-off protector) 3 protection.
Backing 4 be can pass through the film 4a of water vapour and latticed stiffener 4b group by being not through liquid Dress is formed, and described latticed stiffener is coated with viscous in the way of not blocking the hole in described stiffener Attached property silicone gel.By inserting non-absorbent web 5, backing 4 is fixed to absorbent foam 2.
In figs. 2 and 3, absorbent non-woven cloth 6 is inserted into net 5 and absorbent foam 2 it Between.In the way of wrapping absorbent non-woven cloth 6, it is fixed to net 5 along its periphery absorb sex vesicle Foam 2, the size being smaller in size than absorbent foam of absorbent non-woven cloth 6.
In fig. 2, backing has the size identical with absorbent foam;And in Fig. 1 and Fig. 3, Backing is wider compared with absorbent foam and non-absorbent web, to form the adhesiveness that can adhere to skin Edge or border.
Detailed description of the invention
Water vapour preferably through liquid and outside pathogenic microorganism, but will not be had by backing simultaneously Permeability, to avoid wound and outside liquid and antibacterial contacts and the dipping of wound.By this Backing is referred to as " ventilative and impervious backing ".
Preferably backing is thin and flexible, it is thus possible to be preferably modelled as body shape, and can move Without there being the risk of disengaging.Backing preferably closes shape (conformable).The thickness of backing can be 100-600 μm, preferred 250-500 μm.
As dressing of the present invention a part backing by continuous film 4a and latticed stiffener 4b Composition, described latticed stiffener is coated with adhesion in the way of not blocking the hole in described stiffener Property silicone gel.For in the sense that it is without perforation step, this film is continuous print.
Film can be replaced with foam/membrane complex or fabric/membrane complex.In available film, pass through The mode enumerated can be mentioned that poly(ether-urethane) film, polyetheramides film or polyether ester film.
The thickness of film for example, 5-200 micron, preferred 10-75 micron, more preferably 10-50 micron.
Continuous film is not through liquid, but can pass through water vapour.Continuous film can be that breathable is not permeable Permeable membrane or aforesaid compounds, such as, be usually used in manufacturing the continuous film of absorbent dressing.Film preferably has More than 3000g/m2/ 24 hours, preferably greater than or equal to 7000g/m2/ 24 hours, more preferably greater than Or equal to 10000g/m2The moisture vapor transmission rate (MVTR) of/24 hours.Latticed stiffener is not to block up The mode filling in the hole in described stiffener is coated with silicone compounds.Select the most as follows by This stiffener of this coating: keep gratifying, particularly greater than or equal to 4000g/m2/24 Hour, preferably greater than or equal to 5000g/m2The backing moisture vapor transmission rate value of/24 hours.? NF-EN13726-2 standard (the 3.3rd chapter) describes the measurement moisture vapor transmission rate when liquid contacts Technology.
When dressing comprises sideband, will not be rolled by backing self after removing stripping type protection Mode, stiffener can make backing hardening, described stripping type protection be optionally used for protect foam Or interface layer and/or adhesiveness border.
Stiffener can be made up of any lattice-like material, such as membrana fenestrata, thermoplastic web, fabric (example Such as yarn fabric, fabric or non-woven fabrics), for making dressing preferably be maintained on skin, preferably elastic Material.Such as, membrana fenestrata is made up of polyethylene or polypropylene.Such as, yarn fabric is by gathering benzene two Formic acid glycol ester or polyamide are made.Every Gram Mass (grammage) of stiffener is preferred For 10-500g/m2, such as 20-300g/m2.Can be on the one side of stiffener, two sides or the most whole Surface-coated silicone gel.The size in stiffener hole can be 0.1-5mm, such as 0.5-3mm.Add Gu the hole surface of thing preferably comprises the 1-99% on continuous film surface, preferred 25-90%, more preferably 30-80%; Once the hole surface of stiffener is coated with silicone gel, and described hole surface preferably comprises continuous film surface 10-99%, preferred 10-60%, more preferably 25-75%.
According to an embodiment, use fabric, preferably with not on the whole surface of fabric The mode blocking the hole in described fabric is coated with silicone gel.Such as by fabric is dipped in In silicone gel precursor mixture, make whole fabric group (mass) silicone-coating gel.
According to another embodiment, described stiffener is membrana fenestrata, and described membrana fenestrata is only in its one side On in the way of not blocking the hole in described membrana fenestrata silicone-coating gel, such as can by heating, Ultrasonic, high-frequency therapeutic treatment or binding agent are fixed to the tool hole polyurethane film of continuous film.
Adhesiveness silicone gel is the silicone compounds that structure crosslinks.Silicone gel demonstrates viscous Poly-power, thus when removing dressing, residue will not be left on skin, and remain to be attached to add Gu thing.Can crosslink after being contacted with each other by silicone precursor, the most hydrogenated silanization or condensation are anti- Silicone gel should be manufactured.In the prior art, such as document EP-A-0 251 810, EP-A-0 300 This type of system known in 620 or US-A-4 921 704.In the precursor mixing described in described document Thing substantially comprises:
-component A and platinum catalyst, described component A is included in it and respectively holds by vinyl substituted extremely Few a kind of polydimethylsiloxane, and
-component B, described component B is for comprising at least two hydrosilanes (hydrosilane) group Polydimethylsiloxane.
Two kinds of components are put together, causes the two functionalized poly dimethyl siloxane to hand over Connection reaction, described cross-linking reaction is carried out the most at ambient temperature and can be accelerated by heating.
Can at least one in the two component blast blending, such as pigment, inhibitor Or loose filler (bulking fillers).
The precursor of adhesiveness silicone gel is selected from following products: from Bluestar Silicones's Silbione RT4712A&B and Silbione RT4717A&B;From The Wacker of Wacker-Chemie GmbH612;From Nusil Technology'sMED-6340、MED-6345、MED3-6300 or MED12-6300;And from Dow Corning's
According to the method for EN1939, preferably so that skin is had more than 40cN/cm, excellent by backing Select the mode of the adhesion of 45cN/cm, select silicone gel.By a width of 20mm, a length of 150mm Backed samples be placed on forearm.After 10 minutes, with the angles of 90 ° in the stretching of 900mm/min Under speed, measure adhesion with ergometer.
Preferably silicone gel is applied in the way of not blocking the hole in stiffener latticed reinforcing Thing, every Gram Mass of described silicone gel is 100-500g/m2, preferred 150-250g/m2, To take into account enough moisture vapor transmission rates and to continuous film or enough cohesive strengths of skin.
By the way of enumerating, the backing being made up of following combination can be used: have about 7000g/m2The polyurethane film of 30 μ m-thick of/24 hours moisture vapor transmission rates and with 200g/m2Ratio Example silicone gel is at the 40g/m of its whole surface-coated2The combination of braided polyester thing.This backing Thickness be about 400 μm, MVTR is about 5000g/m2/ 24 hours.
In one embodiment, the size of backing is more than the size of absorbent foam and described Foam occupy the central authorities of backing, thus produces adhesiveness border.
Dressing of the present invention comprises the net being inserted between absorbent foam and backing, and being used for will Described absorbent foam and backing assemble.The most in a humid environment, owing to being coated with The backing surface of adhesiveness silicone gel can not fully adhere to absorbent foam, and therefore this is fixed Means are required.
The net being inserted between absorbent foam and backing is the non-suction with low every Gram Mass The property received non-woven fabrics.This non-woven fabrics can be any type non-woven fabrics being usually used in health and dressing field, Particularly filature fleece formation non-woven fabrics, carding non-woven fabrics or spun-laced nonwoven fabric (spun laid, carded Or spun lace nonwoven).Every Gram Mass of described net is preferably 15-50g/m2, preferably 20-40g/m2
Do not contain such as artificial silk, viscose glue or the absorbency fiber of cellulose derivative at net and do not contain For having in the sense that absorbent particles, this net is non-absorbent web.
Net can comprise Fypro, polyester fiber, polyurethane fiber and/or polyolefine fiber.Root According to an embodiment, net comprises polyethylene fibre.Described fiber can be homofil or Core/shell type or parallel type two component fibre.Such as may select filature fleece formation non-woven fabrics, preferred spunbonded type (spun bond) filature fleece formation non-woven fabrics.
Non-absorbent web is preferably made up of hydrophobic fibre, but also can be made up of and warp hydrophilic fibre Crossing process makes non-absorbent web become hydrophobicity.As long as its porosity is enough, net can be constituted by several layers, The layer contacted with adhesiveness silicone gel is non-absorbent, the most hydrophobic.
By conventional technique for fixing (as heating, ultrasonic, high-frequency therapeutic treatment or with binding agent), by non- Absorbent web is fixed on the whole surface of absorbent foam or the most only along the limit of absorbent foam Edge is fixed.
In the context of the present invention, the every Gram Mass being made up of polyethylene fibre is such as used For 30-40g/m2Spun-bonded non-woven fabrics, as Freudenberg company withLSO1040 The product of WEISS sold.
In the context of the present invention, absorbent foam be selected from by mix absorbent particles and have Absorbent Hydrophobic adsorption sex vesicle foam and hydrophilic absorbent sex vesicle foam.
Patent application WO96/16099, WO94/29361, WO93/04101, EP420 515, EP392 788, EP299 122 and WO2004/074343 describe those skilled in the art public The hydrophilic absorbent sex vesicle foam known and manufacture method thereof.Such as, this class A foam A corresponds to AMS company The 562-B of MCF03 or the RYNEL Company sold.
An optimal way according to the present invention, uses hydrophilic polyurethane foam, according to desired Absorbability select foam thickness.In the context of the present invention, particularly most preferred thickness Polyurethane foam for 1.5-5mm.
If being designed to increase the absorbability of dressing, can by aforesaid foam with selected from foam, Second absorbent layer of absorption fabric (such as yarn fabric or fabric or non-woven fabrics fabric) is tied mutually Close.
A mode according to the present invention, uses foam 2(such as hydrophilic polyurethane foam) and inhale The combination of the property received non-woven fabrics 6.As shown in Figures 2 and 3, preferably by described absorbent non-woven cloth It is placed between absorbent foam and net.Little according to this modification, the preferably size of absorbent non-woven cloth In the size of foam, thus the edge that absorbent non-woven cloth wraps up into being made up of net and foam is fixed Jacket in.
Absorbent non-woven cloth is preferably by absorbency fiber (such as cellulose, artificial silk or viscose rayon) Composition.Preferably obtain non-woven fabrics by dry process (referred to as " air lay ").
Conventional all adhesive pattern in this technique are used equally to the non-woven fabrics of the present invention: pass through Spraying latex adhesive;By mix heat-bondable fibre or powder, the most heated process and bond;Logical Cross and combine both technology and bond;Bonded by the simple compression of fiber.Preferably need not mix Enter last a kind of adhesive pattern of thermo-adhesive materials or latex.
According to an embodiment of the invention, absorbent non-woven cloth is to account for non-woven fabrics gross weight 1wt%-70wt%, preferred 25wt%-55wt% ratio mixed with superabsorbent polymer particles.Super Strong absorbent polymer is selected from acrylate copolymer, including the salt of acrylate copolymer (such as poly-third Olefin(e) acid sodium).
According to a preferred embodiment of the present invention, use based on superabsorbent polymer particles It is not incorporated into the non-woven fabrics of thermo-adhesive materials or latex, at described non-woven fabrics with cellulose fibre Cover with net based on cellulose on each.According to another modification of the present invention, also can be by such as Lower non-woven fabrics is used as absorbent non-woven cloth: be made up of two nets based on cellulose, and described Superabsorbent polymer particles is individually mixed or by superabsorbent polymer particles between two nets Mix with binding agent combination.
Absorbent non-woven cloth also can comprise superabsorbent fiber.
In the context of the present invention, following non-woven fabrics is preferably used: there is the thickness of 0.5-3mm; And/or there is 200-500g/m2Every Gram Mass;And/or have more than 5000g/m2, more excellent Choosing is more than or equal to 7000g/m2Absorbability.Described absorbability can be according to EDANA 440.1.99 standard measures.
Suitably absorbent non-woven cloth for example, EAM Corporation Company is entitledAbsorbent non-woven cloth.
Preferably the discontinuous interface layer 1 being intended to Wound contact is placed in the table of absorbent foam Face is also in the face of wound.This interface layer is discontinuous, to allow exudate to enter absorbent foam.When When removing dressing, this interface layer will not change wound devastatingly.
According to an embodiment of the invention, dressing does not comprise sideband, and interface layer is micro-viscous It is attached to wound.I.e. it is capable of dressing to be fixed to wound temporarily, and described apply be can be removed Expect the structure without changing perilesional skin or wound devastatingly, so that this dressing can Reorientate and be conducive to nursing.This fixing can assist nursing staff or user supporting method, Adhesive plaster, ribbon (strip) or fixing net (holding net) cover dressing.
The composition of interface layer can be the composition of hydrophobicity, hydrophilic or both sexes.
Thus can be mentioned that: compositions based on silicone polymer (particularly silicone gel), poly-ammonia Gels, containing hydrocolloid (or even hydrogel, such as based on poly-(AMPS) hydrogel) Based on elastomer compositions.
In the context of the present invention, particularly preferably use containing elastomer, plasticizer and hydrocolloid The discontinuity layer of compositions.This interface layer is by being maintained in the wet environment of wound level Promote agglutination, and can delivery of active agents, the interface layer of silicone coated cannot accomplish this A bit.
Elastomer is selected from poly-(styrene-olefin-styrene) being optionally combined with diblock copolymer Triblock polymer.Triblock copolymer can be that poly-(styrene ethylene-propylene-styrene) (is called for short SEPS) block copolymer or withG1651、G1654 orPoly-(styrene-ethylene-butylene-styrene) (being called for short SEBS) of G1652 sold Block copolymer.
In the plasticizer compounds that can use, can specifically mentioned mineral oil, polybutene or neighbour Phthalate/ester derivant.Particularly preferably use selected from933 HesMineral plasticising oil in the product of 919 sold.
As suitable hydrocolloid, such as, can be mentioned that pectin, alginate/ester, natural plant (example In particular such as POLY-karaya), cellulose derivative (such as carboxymethyl cellulose and alkali metal salt thereof, If the sodium salt of carboxymethyl cellulose is (with CMC7H4XF title is known) or calcium Salt) and synthetic polymer based on superabsorbent acrylates (such as BASF AG withThe product of 1003 sold, CIBA Specialty Chemicals company withSC91 product sold) and the mixture of these compounds.
The release of the activating agent for being optionally present in optimum organization thing, wettability or gelling speed Degree, if required, the compound based on elastomer containing hydrocolloid can comprise one or more Antioxidant and the surfactant of SEPPIC Company80 or polymerization ThingEMT10。
If it is desire to interface layer has micro-adhesiveness or adhesiveness, containing hydrocolloid based on elasticity The compositions of body includes thickening product, and this thickening product is selected from tackifying resin, low-molecular-weight Polyisobutylene or their mixture.Generally preferably use hydrogenated resin, such as 5000 seriesResin, particularly5380 resins.
Compositions can include the active component beneficially processing wound.Can be used for the context of the invention Material in, can be mentioned that in the way of enumerating:
-antibacterial agent, such as silver derivant, such as silver or salt (the such as silver sulfate, chlorine of other metal Change silver or silver nitrate and silver sulfadiazine), silver or complex (the such as silver boiling of other metal Stone (such as alphasan) or pottery);Metronidazole (metrodinazole);Neomycin;Many Acarasiales Element B;Penicillin (amoxicillin);Clavulanic acid;Tetracycline;Minocycline;Chlortetracycline;Ammonia Base glucosides class;Amikacin;Gentamycin;Or probiotic bacteria;
-anti-corrosion additive, such as chlorhexidine, triclosan, biguanide, Hexamidine, thymol, lugol, gathers Dimension ketone iodine (iodinated povidone), benzalkonium chloride and Benzethonium (benzethonium);
-analgesic, as acetaminophen, codeine, dextropropoxyphene, tramadol, morphine and Its derivant, corticosteroid and derivant;
-antiinflammatory, such as glucocorticoid, non-steroidal antiinflammatory agent, aspirin, ibuprofen, ketone Lip river Sweet smell, flurbiprofen, diclofenac, aceclofenac, ketorolac, meloxicam, piroxicam, Tenoxicam, naproxen, indomethacin, HCT 3012, nimesulide, celecoxib, support Former times cloth, Parecoxib, rofecoxib, Valdecoxib, Phenylbutazone, niflumic acid and mefenamic acid;
The activating agent of-promotion healing, such as retinol, VitAVitE, N-acetyl group hydroxyl Proline, Herba Centellae (Centella Asiatica) extract, papain, thyme oil, Rhizoma Melaleuca Viridiflora quintessence oil, rosemary ethereal oil and Herba Salviae Japonicae essential oil, hyaluronic acid, poly-sulfated oligosaccharide And salt (particularly has the synthesis sulfated oligosaccharide of 1-4 monosaccharide unit, such as sucrose eight sulfur Acid potassium salt or sucrose octasulfate silver salt), sucralfate, allantoin, carbamide, metformin, enzyme (example Such as proteolytic enzyme, such as streptokinase, trypsin or collagenase), peptide or protease inhibitor;
-anesthetis, such as benzocaine, lignocaine, dibucaine, Pramoxine HCL, cloth ratio Caine, mepivacaine, prilocaine or etidocaine.
Based on elastomer micro-adhesive composition containing hydrocolloid, described compositions are preferably used Comprise (adding up to 100wt%):
0.05wt%-1wt% antioxidant;
10wt%-60wt% tackifying resin;
2wt%-20wt%, preferred 12-16wt% sodium carboxymethyl cellulose;
10wt%-65wt% plasticising mineral oil;
5wt%-25wt% poly-(styrene-ethylene-butylene-styrene) or poly-(styrene ethylene-propylene- Styrene) triblock polymer;And
1wt%-15wt% is by 2-methyl-2-[(1-oxo-2-acrylic) amino]-1-propane sulfonic acid salt and propylene The copolymer of acid 2-hydroxy methacrylate composition.
Another hydrocolloid elastic composition can comprise (adding up to 100wt%):
0.05wt%-1wt% antioxidant;
2wt%-20wt%, preferred 12wt%-16wt% sodium carboxymethyl cellulose;
20wt%-65wt% plasticising mineral oil;And
3wt%-25wt% poly-(styrene-ethylene-butylene-styrene) or poly-(styrene ethylene-propylene- Styrene) triblock polymer.
At least at absorbent foam or be coated with the absorbent foam of interface layer and be intended to contact wound On surface, with protecting film-paste layer to described absorbent foam or the absorption sex vesicle that is coated with interface layer Foam is protected by, and described protecting film-paste layer can remove by peeling off before using dressing.
Stripping type protection 3 can be made up of one or more ingredients, can shell before the use From.In the case of dressing comprises the sideband of binding agent coating, this protection covers absorbent foam Whole surface or all surface of backing.
This protection can be any material that dressing skilled person is commonly used for protection.Such as, This protection can be at the form of film and (is such as made up of polyolefin (such as polyethylene or polypropylene) Film or polyester film), may also be in the form of paper.Preferably at least one face of this film, use silicone Compound (such as silane), fluorine compounds or fluorosilicone compound process.
This protection should be suitable for micro-sticking property of interface layer.If backing comprises sideband, suitable In the case of when, this protection also should be suitable for the character of the adhesiveness silicone gel of described backing.
In the context of the present invention, the most double ingredient formulas are particularly preferably used Protection (two-part protector).
The thickness of stripping type protection is preferably 10-100 μm, e.g., from about 50 μm.
Preferably by Siliconature company withThe product of M1R88001 sold is used as This type of stripping type protection.
The dressing of the present invention be advantageously applied to process all of exudative chronic wounds (eschar, Ulcer (such as diabetic foot ulcer)) and acute wounds (second degree burns, scratch (dermabrasion), Traumatic wounds, postoperative wound).
When comprising adhesiveness sideband, the dressing of the present invention is particularly well-suited to when perilesional skin Time fragile, wound is processed.
In the context of the present invention, for avoiding departing from too early, the dressing with fillet is preferably used.
The dressing of the present invention can be at small size or the form of large-sized independent dressing.Dressing is only In the vertical packing material being packaged in sealing, it is ensured that dressing preserves in gnotobasis.
Subject of the present invention is also the method preparing aforementioned dressing, and the method is produce backing and incite somebody to action Backing is assembled to absorbent foam.According to an embodiment, absorbent foam is fixed to non-suction The property received net, then by making the contact of described non-absorbent web be coated with the support of adhesiveness silicone gel Thing side, thus assembly is assembled to backing.Such as, in calendering (calendered) to backing Before, absorbent foam and non-absorbent web are carried out heat seal.
In the first step, by coating stiffener and the stiffener after coating is assembled to continuous film and Produce backing.
One in the paint-on technique that use those skilled in the art commonly use, coats silicone gel extremely On stiffener.
According to the optimal way of the present invention, by silicone gel coating to two faces of stiffener.I.e. Make gel the most fully crosslinked, it is possible to be assembled on continuous film by described stiffener, to guarantee described film And the cohesive strength between latticed stiffener.In this embodiment, it is not necessary to binding agent can be by Stiffener adheres to be not through liquid but can pass through the film of water vapour.
In this approach, step in the following order backing can be manufactured:
-use the mixture of silicone gel precursor to cover two faces of stiffener;
-stiffener is assembled to film, such as carried out by calendering;And
-once stiffener and film assembling, makes silicone gel crosslink or accelerates its crosslinking, the most logical Cross to be positioned in baking oven backing and carry out.
Such as, stiffener is immersed in the mixture of silicone gel precursor, then at Lamination station Extrude between two rollers in (lamination station).The hole of air feeder restructural stiffener, Thus remove the silicone gel of surplus.
In another way, silicone gel is coated on a face to two faces of stiffener, and By binding agent, another side is fixed to continuous film.Enter also by heating, ultrasonic or high-frequency therapeutic treatment Row is fixing, and in this case, stiffener and/or continuous film can be thermoplastic, in order to will They heat seals.
Described backing can be protected by covering the adhesiveness face of backing with protective layer or film-paste layer.Example As, this protective layer can be paper or polyester film.
In second step, non-absorbent web is fixed to absorbent foam.Before superposition, will bubble The volume of foam volume and non-absorbent web launches and relaxes.By heating, ultrasonic, high-frequency therapeutic treatment or with viscous Net and foam are fixed together by mixture only edge along them.For example, it is preferable to by heating or high The whole edge that frequency processes along foam block carries out heat seal.Seal temperature e.g. 80 DEG C-150 DEG C, More preferably 90 DEG C-120 DEG C, the most about 110 DEG C.Net and foam fixing the most only along foam Edge (such as, with the width of 1-3mm) is carried out.Then carry out delaminate (stripping) so that Foam preferably can be optionally cut with square shape, without switching to net along depth of foam.
Subsequently, by applying 0-10bar, the setting pressure of preferred 0-6bar, in Lamination station The foam being fixed to net is assembled into previously fabricated backing.Described Lamination station preferably strikes out Shape workshop section (drawing station).
Before cutting, it is intended at absorbent foam contact on the side of wound, by protecting film-patch Layer covers backing/net/foam assembly, and described protecting film-paste layer can be by stripping before using dressing From and remove.
If absorbed layer covers by interface layer and temporary transient stripping type protection in advance, described temporarily Protection will be removed, thus interface layer be intended to contact wound side on, with protection Film-paste layer covers backing/net/foamed materials/boundary layer assembly, and described protecting film-paste layer can use Remove by peeling off before dressing.
When non-absorbent web is fixed to foam by expectation binding agent, rolling with froth bed Before process, launch and lax non-absorbent web with binding agent coating.Then delaminate, And under conditions of as hereinbefore, assembly is fixed to backing.
According to an embodiment, when dressing contains absorbent non-woven cloth, will be derived from foam volume, The volume of non-absorbent web and the volume of absorbent non-woven cloth, through launching and lax material superposition.This Three layers all will be through two continuous print delamination step, to be switched to than foam more by absorbent non-woven cloth Little size.If non-woven fabrics contains superabsorbent polymer particles, preferably by net and absorbability Foam carries out heat seal.
Once net and absorbent foam are interfixed, preferably by laminating method as hereinbefore Assembly is assembled to backing.The selection of non-absorbent web of the present invention is preferably able to without such as existing Have and technology equally depends on acryloid cement and backing and net are assembled.When dressing contains Adhesiveness sideband, dressing after a procedure was removed or when skin departs from, backing and nonabsorbable Net still remains attached to together.
Preferably net is being fixed in the step before backing, net and absorbent foam is being interfixed, To avoid weakening silicone gel.
According to an embodiment, preferably before non-absorbent web is faced being fixed to absorbent foam, Described non-absorbent web preferably carries out sided corona treatment (corona treatment).Sided corona treatment makes it possible to Enough strengthen the attachment of the net backing to being coated with adhesiveness silicone gel.In this embodiment, Net can be made up of polyethylene fibre.
Preferably before absorbent foam is fixed to non-absorbent web, cover described with interface layer Absorbent foam.
Such as, as it was noted above, interface layer can be containing based on elastomer compositions and containing water Colloid.Can be according to well known to a person skilled in the art heat fusing method, by each constituent is existed Carry out hot mixing at a temperature of 90 DEG C-160 DEG C, preferably 110 DEG C-140 DEG C, manufacture said composition. Preferably the cylinder (etched cylinder) being etched is dipped in the compositions carrying out hot mixing in advance, Then will keep the compositions demoulding of high temperature and be transferred on absorbent foam.The group of high temperature will be kept Compound applies can optimize the attachment of interface layer to absorbent foam.Then step of delaminating is being carried out Before Zhou, temporary transient protection is placed on the foam being coated with interface layer.By foam/net group After piece installing is fixed to backing, temporary transient protection is removed, thus uses stripping type protection, Described stripping type protection removed before by dressing application to skin.
Embodiment
By following example, the present invention will be described.
Embodiment 1: the preparation of absorbent dressing
Manufacture and comprise the dressing of following material: micro-adhesiveness interface layer, absorbent foam and gas Stream becomes net non-woven fabrics, nonabsorbable polythene net, the backing being coated with adhesiveness silicone gel and stripping From formula protection.
Use following material:
-backing, described backing is 40g/m2Braided polyester thing, at two of this braided polyester thing On face and it is coated with adhesiveness silicone gel (200g/m on whole surface2), described backing is laminated On the polyurethane film of 30 μ m-thick.This backing has thickness and the about 5000g/m of about 300 μm2/24 Hour MVTR.
-non-absorbent web, described non-absorbent web for example, Freudenberg withLSO The 40g/m of 1040WEISS sold2Polyethylene nonwoven.
-absorbent foam, described absorbent foam is that CORPURA is with MCF03 sold 3mm hydrophilic polyurethane foam.
-absorbent non-woven cloth, is inserted into described absorbent non-woven cloth between net and foam, described suction The property received non-woven fabrics is the air-laid nonwoven fabrics (200g/m containing super absorbent polymer2), institute State air-laid nonwoven fabrics by EAM Corporation withSold.
-fluorosilicone-paste layer PET stripping type protection, described protection thickness is 50 microns, by two Individual aerofoil form, described protection by SILICONATURE withM1R88001 name Claim supply.
The preparation of interface layer and the coating on absorbent foam thereof:
Prepare following compositions (by based on the wt% of gross weight):
-mineral oil, by Shell company with919 sold: 39.7%
-sodium carboxymethyl cellulose, by AQUALON company with CMC7H4XF name Claim to sell: 14.8%
-poly-(styrene-ethylene-butadiene) block copolymer, by KRATON company with G1651E sold: 4.7%
-antioxidant, by CIBA SPECIALTY CHEMICALS company with 1010 sold: 0.2%
-2-methyl-2-[(1-oxo-2-acrylic) amino]-1-propane sulfonic acid salt and acrylic acid 2-hydroxy methacrylate The copolymer of (releasing agent), by SEPPIC company withEMT10 sold: 5%
-tackifying resin, by EXXON CHEMICALS company with5380 titles Sell: 35.6%.
In MEL G-40 blender, add mineral oil, hydrocolloid and elastomer, be subsequently adding anti- Oxidant and releasing agent (releasing agent), be eventually adding tackifying resin, be heated to 100 DEG C The temperature of-110 DEG C, thus obtain uniform mixture.
By aforementioned mixture with 170(± 40) g/m2Amount coat discontinuously to hydrophilic polyurethane On foam.
The assembling of layer:
-make the sheet material of polyurethane net carry out sided corona treatment under conditions of following:
-generator power: 570 watts;
-electrode number/width: 3/0.25m;
-gap adjusts: 2mm;
-the speed of service: 2m/ minute.
-sided corona treatment effect disappear before, with AMIS hand seamer only in side with 2mm Width net and hydrophilic polyurethane foam are sealed, then absorbent non-woven cloth is inserted into Between foam and net.
-under conditions of as hereinbefore, its excess-three side is carried out seal operation, to form 8 × 8cm Square, be then sliced out the edge of assembled complex.
-backing is cut to the square of 15 × 15cm, then on both vertical directions, pass through Roll with the roller of 10kg, backing is assembled to aforesaid complex.
-cut out the final dressing with fillet of 13 × 13cm.

Claims (14)

1. a wound dressing, described dressing comprise absorbent foam (2) and be not through liquid but Can pass through the protectiveness backing (4) of water vapour;
-described backing (4) is by assembling shape by continuous film (4a) and latticed stiffener (4b) Become, at least one face of described stiffener is coated with in the way of not blocking the hole in described stiffener Being covered with adhesiveness silicone gel, described stiffener covers the whole surface of described continuous film;
-described wound dressing also comprises and is inserted between described absorbent foam (2) and described backing Non-absorbent web (5), described non-absorbent web adheres to be coated on described stiffener (4b) Described adhesiveness silicone gel, and it is fixed to described absorbent foam (2).
2. wound dressing as claimed in claim 1, it is characterised in that described non-absorbent web (5) Every Gram Mass be 15-50g/m2
3. wound dressing as claimed in claim 1, it is characterised in that described non-absorbent web (5) Comprise polyethylene fibre.
4. wound dressing as claimed in claim 1, it is characterised in that described absorbent foam (2) Occuping the central authorities of described backing (4), the surface of described backing (4) is more than described absorbent foam (2) surface, thus produce adhesiveness border.
5. wound dressing as claimed in claim 1, it is characterised in that described absorbent foam (2) For hydrophilic polyurethane foam.
6. wound dressing as claimed in claim 1, it is characterised in that described adhesiveness silicone coagulates Every Gram Mass of glue is 100-500g/m2
7. wound dressing as claimed in claim 1, it is characterised in that at described absorbent foam (2) on the surface of wound, described absorption sex vesicle is covered with discontinuous interface layer (1) Foam (2), described interface layer (1) comprises elastomer, plasticizer and hydrocolloid.
8. the wound dressing as according to any one of claim 1-7, it is characterised in that described net Trellis stiffener (4b) is fabric, on two faces of described fabric and at described fabric Whole surface on be coated with in the way of not blocking the hole in described fabric adhesiveness silicone coagulate Glue.
9. the wound dressing as according to any one of claim 1-7, it is characterised in that described net Trellis stiffener (4b) is membrana fenestrata, not block described tool on a face of described membrana fenestrata The mode in the hole in pore membrane is coated with adhesiveness silicone gel.
10. the method for the wound dressing according to any one of manufacturing claims 1-9, described method exists In: produce described backing (4), by described non-absorbent web (5) and described absorbent foam (2) Fixing to form assembly, then assembly is assembled to described backing (4).
11. methods as claimed in claim 10, it is characterised in that by heating, ultrasonic or use Binding agent only along the edge of described non-absorbent web (5) and described absorbent foam (2) by described Non-absorbent web (5) is fixed together with described absorbent foam (2).
12. methods as claimed in claim 10, it is characterised in that by high-frequency therapeutic treatment only along institute State the edge of non-absorbent web (5) and described absorbent foam (2) by described non-absorbent web (5) It is fixed together with described absorbent foam (2).
13. methods as according to any one of claim 10-12, it is characterised in that in lamination work Duan Zhong, by applying the pressure of 0-10bar, is assembled to described backing (4) by described non-absorbing The described assembly that property net (5) and described absorbent foam (2) form.
14. methods as according to any one of claim 10-12, it is characterised in that fixing facing Before described absorbent foam, described non-absorbent web (5) is carried out sided corona treatment.
CN201280029311.XA 2011-04-15 2012-04-13 Hydrocellular absorbent dressing and the purposes in processing chronic wounds and acute wounds thereof Active CN103607983B (en)

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FR1153325A FR2974004B1 (en) 2011-04-15 2011-04-15 HYDROCELLULAR ABSORBENT DRESSING, ITS USES FOR THE TREATMENT OF CHRONIC AND ACUTE WOUNDS
PCT/FR2012/050811 WO2012140377A1 (en) 2011-04-15 2012-04-13 Hydrocellular absorbent dressing, and uses thereof for the treatment of chronic and acute wounds

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BR112013026418A2 (en) 2020-08-11
ZA201307829B (en) 2015-01-28
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CN103607983A (en) 2014-02-26
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KR101925655B1 (en) 2018-12-05
JP5947881B2 (en) 2016-07-06
ES2638906T3 (en) 2017-10-24
SG194487A1 (en) 2013-12-30
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DK2696827T3 (en) 2017-09-11
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RU2586313C2 (en) 2016-06-10
CA2832883A1 (en) 2012-10-18
CA2832883C (en) 2019-07-02
EP2696827A1 (en) 2014-02-19
US20140142526A1 (en) 2014-05-22
US9452086B2 (en) 2016-09-27
RU2013150840A (en) 2015-05-20
MX2013012051A (en) 2014-07-28
WO2012140377A1 (en) 2012-10-18
PT2696827T (en) 2017-08-30

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